#!/bin/bash

# Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.

# This script blinks the visual feedback LED on the board, D7, on and off five times. No additional equipment is required.

# GPIO03 is pin 66 as calculated in Tegra GPIO header file

echo 66 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio66/direction

for i in {0..5}
do
    echo 0 > /sys/class/gpio/gpio66/value
    sleep 1
    echo 1 > /sys/class/gpio/gpio66/value
    sleep 1
done
echo 0 > /sys/class/gpio/gpio66/value
